CN220236041U - Atomizer and electronic atomization device - Google Patents

Abstract

The utility model relates to an atomizer and an electronic atomization device. The atomizer comprises a shell, a sleeve, an atomizing core and a sealing piece, wherein a liquid storage cavity is formed in the shell, the sleeve is arranged in the shell, the atomizing core is arranged in the sleeve, and the sealing piece is arranged between the atomizing core and the sleeve. The sealing element and the sleeve are provided with a liquid inlet channel for communicating the liquid storage cavity with the atomized core liquid guide, and a ventilation channel for communicating the liquid storage cavity with the outside is formed between the sealing element and the sleeve. The outer wall surface of the sealing piece is at least partially in sealing fit with the inner wall surface of the sleeve, so that the liquid inlet channel and the ventilation channel are separated, and the ventilation channel and the liquid inlet channel are not mutually influenced. The ventilation channel is positioned on the outer side of the sealing piece, so that the influence on the structure of the ventilation channel due to deformation of the atomization core, uneven outer surface and the like can be greatly reduced, the ventilation channel is fixed, and the ventilation process is stable. In addition, the cotton wrapping assembly is not needed, the production efficiency is improved, the manufacturing assembly is simple, and the automatic production is convenient.

Description

Atomizer and electronic atomization device

Technical Field

The utility model relates to the technical field of atomization, in particular to an atomizer and an electronic atomization device.

Background

Electronic atomizing devices generally include an atomizer and a power supply device. Wherein the power supply device is used for supplying power to the atomizer. The atomizer comprises a liquid storage cavity and an atomization assembly, wherein the liquid storage cavity is used for storing a liquid matrix, and the atomization assembly is used for heating and atomizing the liquid matrix after being electrified so as to generate aerosol which can be absorbed.

An existing atomizing assembly includes a sleeve and an atomizing core disposed within the sleeve. Wherein, the atomizing core is generally cylindrical and can adopt porous matrix such as ceramic or glass as liquid absorption. A ventilation cotton layer is usually arranged between the liquid absorbing and the sleeve to realize ventilation, liquid discharging and sealing functions. However, the assembly process of the ventilation cotton layer is complex, the cotton wrapping assembly is needed to be carried out on the surface of the atomization core manually, the labor cost is high, and the production efficiency is low. In addition, the ventilation channel on this cotton layer of taking a breath is random, at the suction in-process, at a certain feed liquor Kong Huanqi of sleeve pipe at random, when the ventilation hole shared with the feed liquor hole, the phenomenon of card bubble appears easily at the feed liquor hole, and then leads to the suction in-process, takes place that the atomizing core is unsmooth down liquid, causes miscellaneous gas risk. Moreover, the tightness deviation of the ventilation cotton layer is larger, so that the ventilation negative pressure fluctuation of the liquid storage cavity is larger, the stability of ventilation and liquid discharging of the atomizer is poorer, and the consistency of the taste of the electronic atomization device product and the durability of the service life of the electronic atomization device product are reduced.

Disclosure of Invention

The utility model aims to solve the technical problems of the prior art and provides an atomizer which can stably exchange air and discharge liquid and is simple to manufacture and assemble and an electronic atomization device with the atomizer.

The technical scheme adopted for solving the technical problems is as follows: a nebulizer is constructed, comprising:

the shell is internally provided with a liquid storage cavity;

a sleeve disposed in the housing;

an atomizing core arranged in the sleeve; and

a seal disposed between the atomizing core and the sleeve;

the sealing piece and the sleeve are provided with a liquid inlet channel which is used for leading the liquid storage cavity to be communicated with the atomization core,

a ventilation channel which communicates the liquid storage cavity with the outside is formed between the sealing piece and the sleeve,

the outer wall surface of the sealing member is at least partially in sealing engagement with the inner wall surface of the sleeve, thereby separating the liquid inlet passage from the ventilation passage.

In some embodiments, the feed channel includes at least one first feed hole formed in the sleeve and at least one second feed hole formed in the seal,

at least one ventilation hole which communicates the liquid storage cavity with the ventilation channel is formed on the sleeve,

the at least one first liquid inlet hole and the at least one ventilation hole are distributed in a staggered manner in the circumferential direction and/or the axial direction of the sleeve.

In some embodiments, the area of the at least one ventilation hole is smaller than the area of the at least one first liquid inlet hole.

In some embodiments, the at least one ventilation aperture has a height that is less than a height of the at least one first fluid inlet aperture.

In some embodiments, the sleeve is formed with two first liquid inlets and two ventilation holes, and the two first liquid inlets and the two ventilation holes are distributed in a staggered manner in the circumferential direction of the sleeve.

In some embodiments, the seal is integrally formed from a silicone material.

In some embodiments, the seal has a recess in an outer side thereof, the recess being covered by an inner side of the sleeve to form the ventilation channel.

In some embodiments, the ventilation channel includes at least one air inlet at one end of the seal and at least one primary channel communicating the at least one air inlet with the reservoir.

In some embodiments, each of the main channels includes a plurality of transverse grooves disposed in parallel spaced apart relation and extending in a circumferential direction of the seal, the at least one longitudinal groove communicating the plurality of transverse grooves therethrough, the at least one air inlet communicating with one end of the at least one longitudinal groove.

In some embodiments, the at least one air inlet is offset from the at least one longitudinal groove in the circumferential direction of the seal.

In some embodiments, the ventilation channel further comprises an annular groove extending in the circumferential direction of the seal, the at least one longitudinal groove communicating with the at least one air inlet through the annular groove.

In some embodiments, the ventilation channel comprises two of the primary channels, the two primary channels being symmetrically disposed with respect to a central axis of the seal.

In some embodiments, the seal has an outer side recessed with at least one recess, and all or a majority of the at least one primary channel is located within the at least one recess.

In some embodiments, the depth of the at least one pit is less than the depth of the at least one main channel.

The utility model also provides an electronic atomization device which comprises the atomizer and a control circuit electrically connected with the atomizer.

The implementation of the utility model has at least the following beneficial effects: the ventilation channel and the liquid inlet channel are separated through the sealing function of the sealing piece, so that the ventilation channel and the liquid inlet channel are not mutually influenced; the ventilation channel is positioned at the outer side of the sealing piece, so that the influence on the structure of the ventilation channel due to deformation of the atomization core, uneven outer surface and the like can be greatly reduced, the ventilation channel is fixed, the ventilation process is stable, compared with ventilation of a ventilation cotton layer, ventilation negative pressure fluctuation in the liquid storage cavity is smaller, the control precision is higher, and stable ventilation and liquid discharging of the atomizer are ensured, so that the consistency of the taste of the electronic atomization device product and the durability of the service life are improved; in addition, the cotton wrapping assembly is not needed, the production efficiency is improved, the manufacturing assembly is simple, and the automatic production is convenient.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic perspective view of an electronic atomizing device according to some embodiments of the present disclosure;

FIG. 2 is a schematic perspective view of the atomizer of FIG. 1;

FIG. 3 is a schematic longitudinal cross-sectional view of the atomizer of FIG. 2;

FIG. 4 is an exploded view of the atomizer of FIG. 2;

FIG. 5 is a schematic view of the longitudinal cross-sectional structure of the atomizing assembly of FIG. 4;

FIG. 6 is an exploded view of the atomizing assembly of FIG. 5;

fig. 7 is a schematic perspective view of the seal of fig. 6.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings or those conventionally placed in use of the product of the present utility model, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above" a second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "under" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is level less than the second feature.

Fig. 1 shows an electronic atomizing device 1 according to some embodiments of the present utility model, the electronic atomizing device 1 comprising an atomizer 100 and a power supply device 200 cooperatively connected with the atomizer 100. The power supply device 200 typically includes a battery for powering the atomizer 100 and a control circuit for controlling the heat generation of the atomizer 100. The atomizer 100 is for receiving a liquid substrate and heating the liquid substrate to atomize upon energization to generate an aerosol. The liquid matrix includes, but is not limited to, materials for medical, health, wellness, and cosmetic purposes.

In some embodiments, the atomizer 100 and the power supply 200 may each have a generally rectangular cylindrical shape, and may be mechanically and electrically connected together in an axial direction. Further, the atomizer 100 and the power supply device 200 may be detachably connected together by magnetic connection, screw connection, snap connection, or the like. It will be appreciated that in other embodiments, the atomizer 100 and the power supply means 200 may be connected together in a non-detachable manner. The cross-sectional shape of the atomizer 100 and/or the power supply 200 is not limited to a rectangular shape, and may have other shapes such as a circular shape, a racetrack shape, or an oval shape.

As shown in fig. 2-4, the atomizer 100 may include a housing 10, a base assembly 20, an atomizing assembly 30, and a nozzle assembly 40. The housing 10 has a liquid storage chamber 110 formed therein for storing a liquid medium, and the base assembly 20 is disposed at one end of the housing 10 and covers the liquid storage chamber 110. The nozzle assembly 40 is disposed at the other end of the housing 10, an air outlet channel 410 for outputting aerosol is formed in the nozzle assembly 40, and an air outlet 4101 communicating with the outside is formed at the upper end of the air outlet channel 410. The atomizing assembly 30 is disposed in the housing 10 and is in fluid communication with the liquid storage chamber 110, and is configured to heat and atomize the liquid matrix in the liquid storage chamber 110 to form an aerosol after being energized, and the aerosol is output through the air outlet channel 410 and reaches the air outlet 4101 to be absorbed by a user.

Specifically, the housing 10 may include a cylindrical side wall 11, a top wall 12 covering an upper end of the cylindrical side wall 11, and a ventilation pipe 13 disposed in the cylindrical side wall 11 in a longitudinal direction in some embodiments. The cylindrical side wall 11 may have a rectangular cylindrical shape, and an opening 111 is formed at a lower end of the cylindrical side wall 11. The vent pipe 13 may be circular and may be coaxially disposed with the cylindrical sidewall 11, the inner wall surface of the vent pipe 13 defines a vent hole 130 communicating with the air outlet channel 410, and an annular liquid storage cavity 110 is defined between the outer wall surface of the vent pipe 13 and the inner wall surface of the cylindrical sidewall 11. It is to be understood that, in other embodiments, the central axes of the cylindrical sidewall 11 and the vent pipe 13 may be disposed in parallel, and the shapes of the cylindrical sidewall 11 and the vent pipe 13 are not limited to the specific shapes described above.

Further, in the present embodiment, the cylindrical side wall 11, the top wall 12 and the ventilation pipe 13 are integrally formed, wherein the ventilation pipe 13 may be integrally formed by extending downward from the top wall 12. In other embodiments, the cylindrical side wall 11 and/or the top wall 12 and/or the vent tube 13 may be separately manufactured and then assembled together.

In some embodiments, the top wall 12 may also be provided with a fill port 120 in communication with the reservoir 110 so that a liquid matrix may be added to the reservoir 110. The suction nozzle assembly 40 is detachably provided at the upper end of the housing 10 and can seal or open the liquid injection hole 120. When it is desired to add liquid matrix to the reservoir 110, the spout assembly 40 may be removed from the housing 10, exposing the fill port 120, and then filling the liquid matrix into the reservoir 110 through the fill port 120 by known filling means. After the liquid injection is completed, the suction nozzle assembly 40 is assembled on the shell 10, and the liquid injection hole 120 is sealed to avoid liquid leakage.

It will be appreciated that in other embodiments, the filling hole 120 may be disposed at other locations of the housing 10, for example, on the cylindrical sidewall 11. Of course, the nebulizer 100 may also be disposable, i.e., the liquid matrix is disposed of after it is exhausted. In this case, the suction nozzle assembly 40 may be disposed at the upper end of the housing 10 in a non-detachable manner, that is, the suction nozzle assembly and the housing are locked once connected, and cannot be separated without damaging the existing structure.

The nozzle assembly 40 may include a nozzle 41 and a seal 42 embedded in the nozzle 41 in some embodiments. The air outlet passage 410 penetrates the suction nozzle 41 in the longitudinal direction and may be disposed coaxially with the suction nozzle 41. The suction nozzle 41 may be made of hard material such as plastic, which is beneficial to the structural stability of the air outlet channel 410. The sealing member 42 may be made of soft sealing material such as silica gel, which is beneficial to improving the sealing performance of the liquid injection hole 120.

Specifically, the suction nozzle 41 may include a suction nozzle housing 411 and an air outlet duct 412 disposed in the suction nozzle housing 411 in a longitudinal direction. The nozzle housing 411 may have a cylindrical structure with an open lower end, and may be detachably connected to the cylindrical sidewall 11 by means of a snap connection. The air outlet pipe 412 may extend downward from the inner side of the top wall of the nozzle housing 411 and may be disposed coaxially with the nozzle housing 411, and the air outlet channel 410 is defined by the inner wall surface of the air outlet pipe 412. The sealing member 42 is annular and is provided between the outer wall surface of the air outlet pipe 412 and the inner wall surface of the suction nozzle housing 411. The lower end surface of the seal member 42 may abut against the top wall 12 of the housing 10 to seal the pour spout 120.

The base assembly 20 is disposed at the lower end opening of the cylindrical sidewall 11 and seals the liquid storage chamber 110, and may have a mounting hole 220 formed thereon for mounting the atomizing assembly 30. The base assembly 20 may include a base 21 and a sealing sleeve 22 that fits over the base 21 in some embodiments. Wherein, the base 21 can be made of hard insulating materials such as plastic, and the sealing sleeve 22 can be made of soft materials such as silica gel. Of course, in other embodiments, the base 21 may be made of a hard conductive material such as metal, and the base 21 may also be used as an electrode, i.e. one pole of the atomizing assembly 30 may be connected to the base 21 and further connected to the power supply 200. In other embodiments, the base 21 may be made of soft material such as silicone, and the base assembly 20 may not include the sealing sleeve 22.

The base 21 may include a base 211 and a socket 212 extending upward from the base 211. The seat 211 is fitted into the opening 111 at the lower end of the cylindrical side wall 11 and closes the opening 111. The seat 211 and the cylindrical side wall 11 can be clamped and fixed by a clamping structure. The socket 212 is annular and extends upward integrally from the upper end surface of the base 211. The inner wall surface of the socket 212 and the upper end surface of the base 211 together define a cavity 2120, and the cavity 2120 is capable of storing a certain amount of condensate or liquid leakage. Of course, in other embodiments, the socket 212 is not limited to be annular, and may include two opposite and spaced support portions, for example.

The sealing sleeve 22 is sleeved on the sleeve joint part 212 and seals the annular space between the sleeve joint part 212 and the cylindrical side wall 11, so that the lower end of the liquid storage cavity 110 is sealed. Generally, the outer wall surface of the sealing sleeve 22 and the inner wall surface of the cylindrical sidewall 11 may be fitted together by interference fit to enhance the sealing effect. The mounting hole 220 penetrates the sealing sleeve 22 in the longitudinal direction and may be disposed coaxially with the sealing sleeve 22, and the lower end of the atomizing assembly 30 may be inserted into the mounting hole 220.

The base 21 may also be formed with at least one air inlet 2130 in communication with the exterior for the entry of ambient air into the atomizing assembly 30. Further, the at least one air inlet hole 2130 may not be directly below the atomizing assembly 30, i.e., the central axis of the at least one air inlet hole 2130 is parallel to and not coincident with the central axis of the atomizing assembly 30, which may reduce or prevent liquid matrix on the atomizing assembly 30 from falling into the air inlet hole 2130 and causing liquid leakage. A space is provided between the lower end surface of the sealing sleeve 22 and the upper end surface of the base 211, so that an air inlet gap 25 is formed between the lower end surface of the sealing sleeve 22 and the upper end surface of the base 211 to communicate at least one air inlet 2130 with the atomizing assembly 30.

Specifically, in the present embodiment, there are two air intake holes 2130, and the two air intake holes 2130 are located at diagonal positions in the cavity 2120, and the projection of the atomizing assembly 30 on the base 21 in the vertical direction is not coincident with both air intake holes 2130, so as to further reduce liquid leakage. It will be appreciated that in other embodiments, the number of air intake apertures 2130 may be one or more than two, and further, the air intake apertures 2130 may be located directly below the atomizing assembly 30.

Further, at least one air inlet boss 213 is formed to protrude upward from an upper end surface of the base 211. The air intake holes 2130 may extend downward from the upper end surface of the air intake boss 213 in the longitudinal direction such that the upper end surface of the air intake holes 2130 protrude from the upper end surface of the housing 211, thereby further reducing leakage of liquid through the air intake holes 2130.

In some embodiments, the base assembly 20 may further include two electrode posts 23 disposed on the base 21. The two electrode leads 333 of the atomizing assembly 30 are connected to the two electrode posts 23, respectively, and are connected to the power supply device 200 via the two electrode posts 23. In the present embodiment, two electrode posts 23 are longitudinally disposed through two electrode holes 2140 on the base 21, and may be respectively disposed at two ends of the cavity 2120 along the length direction. It will be appreciated that in other embodiments, the number of electrode columns 23 is not limited to two, but may be one or more than two.

The upper end surface of the base 211 may further be formed with a protrusion 214 protruding upwards, and the electrode hole 2140 extends downwards from the upper end surface of the protrusion 214 along the longitudinal direction, so that the upper end surface of the electrode hole 2140 protrudes from the upper end surface of the base 211, thereby reducing the leakage caused by the electrode hole 2140.

In some embodiments, the bottom of the base 21 may also be embedded with a magnetic attraction member 24 for magnetically attracting connection with the power supply device 200. Specifically, in the present embodiment, the magnetic attraction pieces 24 are provided in two and are respectively located at both ends of the base 21 in the longitudinal direction.

As shown in fig. 3-6, the atomizing assembly 30 may include a sleeve 31, an atomizing core 33 disposed within the sleeve 31, and a seal 32 disposed between the sleeve 31 and the atomizing core 33.

The sleeve 31 and the seal 32 are formed with a fluid inlet channel 360 for fluid communication between the reservoir 110 and the atomizing core 33. Specifically, the fluid inlet channel 360 includes at least one fluid inlet 3111 formed on the sleeve 31 and at least one fluid inlet 325 formed on the seal 32. In this embodiment, the liquid inlet 3111 and the liquid inlet 325 are directly connected to form the liquid inlet channel 360, so that the liquid matrix in the liquid storage chamber 110 can flow to the atomizing core 33 quickly. Further, the number of the liquid inlet holes 3111 is equal to the number of the liquid inlet holes 325, and the center line of each liquid inlet hole 3111 coincides with the center line of the corresponding liquid inlet hole 325. Of course, in other embodiments, the inlet 3111 and the inlet 325 may be indirectly connected through an intermediate channel, and the number of the inlet 3111 and the number of the inlet 325 may be unequal.

The atomizing core 33 may have a cylindrical shape and include a liquid suction body 331 and a heating body 332 in contact with the liquid suction body 331. The liquid sucking 331 is used for sucking the liquid matrix from the liquid storage cavity 110 and conducting the liquid matrix to the heating body 332, and the heating body 332 is used for heating and atomizing the liquid matrix after being electrified. The liquid absorbing body 331 may be a sintered porous body such as porous ceramics, porous glass ceramics, porous metals, or the like. The sintered porous body has a fixed shape and high strength, and can be combined with the heating body 332 by sintering, so that the connection stability between the liquid suction 331 and the heating body 332 is improved. Of course, in other embodiments, the liquid absorbing body 331 may be made of other fibrous or spongy or foam materials, such as cotton, hemp, nonwoven, and the like.

The suction body 331 may be cylindrical and has an atomizing chamber 3310 longitudinally formed therein. The upper end of the atomizing chamber 3310 communicates with the outlet passage 410 and the lower end communicates with the inlet gap 25. In addition, the air inlet gap 25, the atomizing chamber 3310, and the air outlet channel 410 may be coaxially disposed.

The heating element 332 may be circular and may be disposed on a wall of the atomizing chamber 3310. The heating element 332 may be a heating film, which may be formed on the blank of the liquid absorbing body 331 by silk-screen printing, spraying, or the like, and then sintered together with the liquid absorbing body 331. Alternatively, the heating element 332 may be a metal heating sheet or a metal heating wire formed separately, and then combined with the liquid absorbing body 331.

Further, the atomizing core 33 may further include two electrode leads 333 connected to the heating body 332, and the heating body 332 is connected to the positive and negative electrodes of the power supply device 200 through the two electrode leads 333.

The sleeve 31 can be integrally formed by adopting a metal material, and the metal material has the advantages of high temperature resistance, no pollution, no peculiar smell, low cost and the like. Of course, in other embodiments, the sleeve 31 may be made of other materials that are resistant to high temperatures and have a certain supporting strength, such as plastic, ceramic, glass, etc.

The sleeve 31 may be tubular, and a through hole 310 is formed longitudinally in the sleeve 31. The upper end of the sleeve 31 may be disposed in the vent hole 130 and communicate with the lower end of the outlet passage 410, and the lower end may be disposed in the mounting hole 220 and communicate with the inlet gap 25. In some embodiments, the sleeve 31 may include a first tube segment 311 and a second tube segment 312 axially connected to an upper end of the first tube segment 311. The inner wall surface of the first pipe section 311 defines a first hole section 3110, the inner wall surface of the second pipe section 312 defines a second hole section 3120, and the first hole section 3110 and the second hole section 3120 are axially communicated to form the through hole 310.

The upper end of the first tube section 311 has an annular top wall 3113, and the second tube section 312 extends upward from the inner periphery of the annular top wall 3113. The lower end of the first tube segment 311 may be secured in the mounting hole 220 by an interference fit or the like. The atomizing core 33 and the sealing member 32 may be accommodated in the first pipe section 311, and an upper end surface of the atomizing core 33 and/or the sealing member 32 may abut against a lower end surface of the top wall 3113, so as to realize installation and positioning of the atomizing core 33 and/or the sealing member 32 in the sleeve 31.

The second pipe section 312 may be embedded in the vent pipe 13 by riveting or the like, and the lower end surface of the vent pipe 13 may abut against the upper end surface of the top wall 3113, so as to realize axial installation and positioning between the sleeve 31 and the vent pipe 13. In some embodiments, a sealing ring 34 may be further sleeved between the second pipe section 312 and the ventilation pipe 13, and the sealing ring 34 may be made of soft materials such as silica gel, so as to reduce or prevent the liquid matrix in the liquid storage cavity 110 from leaking through the gap between the second pipe section 312 and the ventilation pipe 13. Specifically, in this embodiment, the sealing ring 34 is an O-ring, the second pipe section 312 is formed with a clamping groove 3121 for installing the sealing ring 34, the sealing ring 34 is clamped in the clamping groove 3121, and the outer wall surface of the sealing ring 34 is in interference fit with the inner wall surface of the ventilation pipe 13.

A ventilation passage 350 is formed between the seal member 32 and the sleeve 31, and at least one ventilation hole 3112 for communicating the ventilation passage 350 with the reservoir 110 is formed in the sleeve 31. The ventilation channel 350 communicates the liquid storage chamber 110 with the outside atmosphere to balance the pressure in the liquid storage chamber 110, thereby solving the problem that the liquid can not be stably discharged due to the excessive negative pressure in the liquid storage chamber 110. In the embodiment, the ventilation channel 350 is a straight liquid ventilation structure and has a longer ventilation path, so that the liquid storage amount of the ventilation channel 350 can be increased, and the problems such as liquid leakage caused by too short ventilation path can be avoided. Of course, in other embodiments, the ventilation channel 350 may take other forms of ventilation, such as a linear, pleated, S-shaped, fishbone, or Tesla valve form.

The outer wall surface of the sealing member 32 is at least partially in sealing engagement with the inner wall surface of the sleeve 31, thereby separating the liquid inlet passage 360 from the ventilation passage 350, and the liquid inlet passage 360 and the ventilation passage 350 are not in communication with each other and are not affected by each other. In the present embodiment, the seal 32 is integrally formed with a soft seal material such as silicone rubber. The sealing element 32 is in a circular tube shape and is sleeved between the atomizing core 33 and the sleeve 31, the outer wall surface of the sealing element 32 can be in sealing fit with the inner wall surface of the sleeve 31 in an interference fit mode, the inner wall surface of the sealing element 32 can be in sealing fit with the outer wall surface of the atomizing core 33 in an interference fit mode, and the upper end surface of the sealing element 32 abuts against the lower end surface of the top wall 3113.

Further, in the present embodiment, the ventilation passage 350 is formed by recessing a part of the outer wall surface of the seal member 32. Specifically, when the seal 32 is mounted in the sleeve 31, the ventilation groove 320 is recessed in a portion of the outer wall surface of the seal 32, and the ventilation channel 350 is formed after the ventilation groove 320 is covered by the inner wall surface of the sleeve 31, the seal 32 is not provided with the outer wall surface of the ventilation groove 320 and the inner wall surface of the sleeve 31 in a sealing fit, so that the ventilation channel 350 and the liquid inlet 3111 are not communicated with each other.

The sealing piece 32 made of the silica gel material has good sealing performance, the structural assembly of the atomization assembly 30 can be reduced to the greatest extent by the sealing piece 32 with the integrated structural design, the manufacturing and the assembly are simple, the automatic production is convenient, the material cost and the assembly cost of the atomization assembly 30 are greatly reduced, and the production efficiency is improved. The ventilation channel 350 is located on the outer side of the sealing member 32, so that the influence on the structure of the ventilation channel 350 caused by deformation of the atomization core 33, uneven outer surface and the like can be greatly reduced, the ventilation channel 350 is fixed, the ventilation process is stable, compared with ventilation of a ventilation cotton layer, ventilation negative pressure fluctuation in the liquid storage cavity 110 is smaller, the control precision is higher, stable ventilation and liquid discharging of the atomizer are ensured, and therefore the consistency of the taste of the electronic atomization device product and the durability of the service life are improved.

Of course, in other embodiments, the sealing member 32 may be made of other materials such as plastic. The ventilation passage 350 may be formed by recessing the inner surface of the sleeve 31, or may be formed by recessing the inner surface of the sleeve 31 and the outer surface of the seal 32 together.

The ventilation channel 350 may be of axisymmetric (e.g., bilaterally symmetric) design, i.e., the ventilation channel 350 is symmetrically disposed relative to the central axis of the seal 32. The symmetrically designed ventilation channel 350 can further improve the reliability of ventilation on the one hand and can also improve the assembly efficiency without distinguishing the assembly direction when the sealing member 32 and the sleeve 31 are assembled on the other hand. Of course, in other embodiments, the ventilation channel 350 may be a single-sided design, i.e., the ventilation channel 350 is disposed on only one side of the seal 32.

Specifically, in the present embodiment, the ventilation groove 320 includes two main channels 321, and the two main channels 321 are symmetrically disposed with respect to the central axis of the seal 32. Each of the main channels 321 includes a plurality of lateral slots 3211 disposed in parallel at intervals and a longitudinal slot 3212 passing through the plurality of lateral slots 3211 to communicate the plurality of lateral slots 3211. The lateral grooves 3211 may be arc-shaped grooves extending in the circumferential direction of the sealing member 32 and may be symmetrically disposed with respect to the longitudinal grooves 3212, and the longitudinal grooves 3212 are straight-line grooves extending in the axial direction of the sealing member 32. The plurality of transverse grooves 3211 can greatly improve the liquid storage capacity of the ventilation groove 320 and reduce pumping leakage; the longitudinal slot 3212 is primarily used to communicate the reservoir 110 with the outside atmosphere.

The transverse grooves 3211 and the longitudinal grooves 3212 may have micro-channel structures, which can lock the liquid matrix by capillary force to prevent liquid leakage, and can enable the liquid matrix in the ventilation groove 320 to flow back to the liquid storage cavity 110 by capillary force for recycling.

Further, the ventilation groove 320 further includes an annular groove 322 communicating with an upper end of the longitudinal groove 3212 and two air inlets 323 communicating with the annular groove 322. The annular groove 322 is an annular groove extending in the circumferential direction of the seal 32, which may be parallel to the transverse groove 3211. The air inlet 323 is recessed from the upper end surface of the seal 32, thereby communicating the annular groove 322 with the second bore segment 3120. The air inlet 323 and the longitudinal groove 3212 are arranged in a staggered manner in the circumferential direction of the sealing element 32, so that suction leakage is effectively avoided. Specifically, in the present embodiment, the two air inlets 323 are disposed at an angle of 90 degrees to the two longitudinal grooves 3212.

Accordingly, there are two ventilation holes 3112, and the two ventilation holes 3112 are respectively communicated with the lower ends of the two longitudinal grooves 3212. That is, the two ventilation holes 3112 are also provided at an angle of 90 degrees with respect to the two air inlets 323.

Of course, in other embodiments, the number of the ventilation holes 3112, the air inlets 323, and the main channel 321 may be one or more than two. In other embodiments, the air inlet 3233 and the longitudinal groove 3212 may not be offset, and in this case, the annular groove 322 may not be provided, and the longitudinal groove 3212 may extend directly upward to the upper end surface of the sealing member 32 and communicate with the second hole segment 3120. Of course, the air inlet 323 may also be formed at the lower end of the sealing member 32 so as to communicate with the air inlet gap 25.

Further, the outer side of the seal 32 may also be concavely formed with a recess 324, and all or a majority of the primary channel 321 (including the transverse slot 3211 and/or the longitudinal slot 3212) may be located within the recess 324. By arranging the concave pits 324, the flowing process of bubbles in the ventilation channel 350 can be smoother, the bubble flowing blocking phenomenon caused by deformation of the ventilation channel 350 due to the extrusion deformation of the silica gel is effectively avoided, and the ventilation reliability is improved. The depth of the pit 324 may be less than the depth of the main channel 321. Here, "depth" refers to the depth at which the pit 324 or the main channel 321 is recessed at the outer side surface of the seal 32. Of course, when the ventilation channel 350 is formed by a depression of the inner side of the sleeve 31, the "depth" refers to the depth of the depression 324 or the main channel 321, respectively, in the depression of the inner side of the sleeve 31.

In the present embodiment, two intake ports 3111 and 325 are provided, and the two intake ports 3111 and 3112 are offset in the circumferential direction and/or the axial direction of the sleeve 31. The liquid inlet 3111 and the air exchanging hole 3112 are not mutually influenced, and the air exchanging channel 350 is completely separated from the liquid inlet channel 360, so that the problem of unsmooth liquid discharging caused by air bubble blocking of the liquid inlet 3111 is solved, and the risk of miscellaneous gas is avoided.

Specifically, in the present embodiment, the two liquid inlet holes 3111 are symmetrically disposed with respect to the central axis of the casing 31, the two air vent holes 3112 are symmetrically disposed with respect to the central axis of the casing 31, and the two liquid inlet holes 3111 and the two air vent holes 3112 are distributed at an angle of 90 degrees in the circumferential direction of the casing 31. The area of the ventilation hole 3112 is smaller than that of the liquid inlet 3111, and the height of the ventilation hole 3112 is lower than that of the liquid inlet 3111, so that it can be ensured that the ventilation channel 350 always maintains an effective liquid seal along with the decrease of the liquid level in the liquid storage cavity 110 in the whole suction process of the atomizer 100, maintains the ventilation negative pressure of the liquid storage cavity 110 stable, and further ensures stable ventilation and liquid discharging of the atomizer 100. Here, "area" refers to the area of the longitudinal cross section of each of the ventilation hole 3112 and the intake hole 3111, and "height" refers to the vertical distance between the center line of each of the ventilation hole 3112 and the intake hole 3111 and the bottom surface of the sleeve 31.

Further, in the present embodiment, the liquid inlet 3111 is a racetrack-shaped hole, and the long axis direction thereof is parallel to the axial direction of the sleeve 31. The ventilation hole 3112 is a circular hole, the bottom surface of the ventilation hole 3112 is lower than the bottom surface of the intake hole 3111, and the top surface of the ventilation hole 3112 is lower than the top surface of the intake hole 3111. Here, the "bottom surface" and the "top surface" are disposed opposite to each other in the axial direction (or vertical direction), wherein the "bottom surface" is a side surface away from the air outlet 4101.

Of course, in other embodiments, the shapes of the intake port 3111 and the ventilation port 3112 are not limited, and may be, for example, elliptical, square, or other shapes. The shape of the intake port 3111 and the ventilation port 3112 may be the same or different.

In the sucking process of the atomizer 100, the liquid matrix in the liquid storage cavity 110 sequentially passes through the liquid inlet 3111, the liquid inlet 325 and the liquid suction body 331 to reach the heating area of the heating body 332, and is heated and atomized to generate aerosol particles for human body sucking; as shown by the arrow in fig. 7, the air in the air passage sequentially passes through the air inlet 323, the annular groove 322, the longitudinal groove 3212 and the ventilation hole 3112, and reaches the liquid storage cavity 110 in the form of small bubbles (for example, bubbles with a diameter smaller than 1 mm), so that the ventilation negative pressure in the liquid storage cavity 110 is ensured to be stable, and the liquid discharge stability of the atomizing core 33 is ensured.

It will be appreciated that the above technical features may be used in any combination without limitation.

The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (15)

1. An atomizer, comprising:

a housing (10), wherein a liquid storage cavity (110) is formed in the housing (10);

a sleeve (31) disposed in the housing (10);

an atomizing core (33) provided in the sleeve (31); and

a seal (32) provided between the atomizing core (33) and the sleeve (31);

the sealing element (32) and the sleeve (31) are provided with a liquid inlet channel (360) which is used for leading the liquid storage cavity (110) to be communicated with the atomizing core (33),

a ventilation channel (350) which communicates the liquid storage cavity (110) with the outside is formed between the sealing element (32) and the sleeve (31),

the outer wall surface of the sealing member (32) is at least partially in sealing engagement with the inner wall surface of the sleeve (31) so as to separate the liquid inlet passage (360) from the ventilation passage (350).

2. The atomizer according to claim 1, wherein the feed channel (360) comprises at least one first feed opening (3111) formed on the sleeve (31) and at least one second feed opening (325) formed on the seal (32),

at least one ventilation hole (3112) for communicating the liquid storage chamber (110) with the ventilation channel (350) is also formed on the sleeve (31),

the at least one first inlet opening (3111) and the at least one ventilation opening (3112) are offset in the circumferential direction and/or in the axial direction of the sleeve (31).

3. The atomizer according to claim 2, wherein the area of the at least one ventilation aperture (3112) is smaller than the area of the at least one first inlet aperture (3111).

4. The atomizer according to claim 2, wherein the at least one ventilation aperture (3112) has a height which is lower than the height of the at least one first inlet aperture (3111).

5. The atomizer according to claim 2, wherein two of said first liquid inlet holes (3111) and two of said air vent holes (3112) are formed in said sleeve (31), and wherein said two of said first liquid inlet holes (3111) and said two air vent holes (3112) are distributed in a staggered manner in a circumferential direction of said sleeve (31).

6. Nebulizer according to claim 1, characterized in that the seal (32) is integrally formed from a silicone material.

7. Nebulizer according to any one of claims 1-6, characterized in that the outer side of the seal (32) is concavely formed with a ventilation channel (320), which ventilation channel (320) is covered by the inner side of the sleeve (31) forming the ventilation channel (350).

8. The nebulizer of claim 1, characterized in that the ventilation channel (350) comprises at least one air inlet opening (323) at one end of the seal (32) and at least one main channel (321) communicating the at least one air inlet opening (323) with the reservoir (110).

9. The atomizer according to claim 8, wherein each of said main channels (321) comprises a plurality of transverse grooves (3211) arranged in parallel spaced relation and extending in a circumferential direction of said seal (32) with at least one longitudinal groove (3212), said at least one longitudinal groove (3212) communicating said plurality of transverse grooves (3211) through said plurality of transverse grooves (3211), said at least one air inlet (323) communicating with an end of said at least one longitudinal groove (3212).

10. The atomizer according to claim 9, wherein the at least one air inlet (323) and the at least one longitudinal groove (3212) are distributed offset in the circumferential direction of the seal (32).

11. The atomizer according to claim 9, wherein the ventilation channel (350) further comprises an annular groove (322) extending in the circumferential direction of the seal (32), the at least one longitudinal groove (3212) being in communication with the at least one air inlet (323) through the annular groove (322).

12. The atomizer according to claim 8, characterized in that the ventilation channel (350) comprises two main channels (321), the two main channels (321) being symmetrically arranged with respect to the central axis of the seal (32).

13. Nebulizer according to any one of claims 8-12, characterized in that the outer side of the seal (32) is concavely formed with at least one recess (324), all or a majority of the at least one main channel (321) being located within the at least one recess (324).

14. The atomizer according to claim 13, wherein the depth of the at least one recess (324) is smaller than the depth of the at least one main channel (321).

15. An electronic atomizing device, characterized by comprising an atomizer (100) according to any one of claims 1-14 and a control circuit electrically connected to the atomizer (100).